We learn wisdom from failure much more than from success. We often discover what will do, by finding out what will not do; and probably he who never made a mistake never made a discovery.
—Samuel SmilesThe perfection of wisdom, and the end of true philosophy is to proportion our wants to our possessions, our ambitions to our capacities, we will then be a happy and a virtuous people.
—Mark TwainKnowing others is intelligence; knowing yourself is true wisdom. Mastering others is strength; mastering yourself is true power. If you realize that you have enough, you are truly rich.
—Tao Te ChingThe wisdom of the wise, and the experience of ages, may be preserved by quotations.
—Isaac D'IsraeliA man doesn't begin to attain wisdom until he recognizes he is no longer indispensable.
—Richard E. Byrd